HackerRank Combinatorics – Div and Span

HackerRank Combinatorics – Div and Span

Challenge: Div and Span Subdomeniu: Combinatorics (combinatorics) Scor cont: 70.0 / 70 Submission status: Accepted Submission score: 1.0 Submission ID: 464745293 Limbaj: python3 Link challenge: https://www.hackerrank.com/challenges/div-and-span/problem Cerinta Maya is teaching Alex about HyperText Markup Language ([HTML](https://en.wikipedia.org/wiki/HTML)). Alex is confused about

HackerRank Combinatorics – Digit Products

HackerRank Combinatorics – Digit Products

Challenge: Digit Products Subdomeniu: Combinatorics (combinatorics) Scor cont: 60.0 / 60 Submission status: Accepted Submission score: 1.0 Submission ID: 464756451 Limbaj: cpp14 Link challenge: https://www.hackerrank.com/challenges/digit-products/problem Cerinta Let $D(X)$ be a function that calculates the digit product of $X$ in base

HackerRank Combinatorics – Cyclic Quadruples

HackerRank Combinatorics – Cyclic Quadruples

Challenge: Cyclic Quadruples Subdomeniu: Combinatorics (combinatorics) Scor cont: 60.0 / 60 Submission status: Accepted Submission score: 1.0 Submission ID: 464744588 Limbaj: python3 Link challenge: https://www.hackerrank.com/challenges/cyclicquadruples/problem Cerinta You need to count the number of quadruples of integers _(X<sub>1</sub>, X<sub>2</sub>, X<sub>3</sub>, X<sub>4</sub>)_,

HackerRank Combinatorics – Cycle Representation

HackerRank Combinatorics – Cycle Representation

Challenge: Cycle Representation Subdomeniu: Combinatorics (combinatorics) Scor cont: 120.0 / 120 Submission status: Accepted Submission score: 1.0 Submission ID: 464775637 Limbaj: cpp14 Link challenge: https://www.hackerrank.com/challenges/cycle-representation/problem Cerinta Let $n$ be a fixed integer. <br> A **permutation** is a bijection from the

HackerRank Combinatorics – Count Palindromes

HackerRank Combinatorics – Count Palindromes

Challenge: Count Palindromes Subdomeniu: Combinatorics (combinatorics) Scor cont: 140.0 / 140 Submission status: Accepted Submission score: 1.0 Submission ID: 464834583 Limbaj: cpp14 Link challenge: https://www.hackerrank.com/challenges/count-palindromes/problem Cerinta A string is made of only lowercase latin letters (a,b,c,d,…..,z). Can you find the

HackerRank Combinatorics – Count Fox Sequences

HackerRank Combinatorics – Count Fox Sequences

Challenge: Count Fox Sequences Subdomeniu: Combinatorics (combinatorics) Scor cont: 80.0 / 80 Submission status: Accepted Submission score: 1.0 Submission ID: 464746086 Limbaj: python3 Link challenge: https://www.hackerrank.com/challenges/count-fox-sequences/problem Cerinta A non-decreasing sequence is a called a **Fox** sequence, iff the most frequent

HackerRank Combinatorics – Costly Graphs

HackerRank Combinatorics – Costly Graphs

Challenge: Costly Graphs Subdomeniu: Combinatorics (combinatorics) Scor cont: 120.0 / 120 Submission status: Accepted Submission score: 1.0 Submission ID: 464834543 Limbaj: cpp14 Link challenge: https://www.hackerrank.com/challenges/costly-graphs/problem Cerinta Let's define the _cost of a simple undirected graph_ as the sum of the

HackerRank Combinatorics – Coinage

HackerRank Combinatorics – Coinage

Challenge: Coinage Subdomeniu: Combinatorics (combinatorics) Scor cont: 40.0 / 40 Submission status: Accepted Submission score: 1.0 Submission ID: 464728902 Limbaj: cpp14 Link challenge: https://www.hackerrank.com/challenges/coinage/problem Cerinta The Indian bank issues coins in 4 denominations, ₹1, ₹2, ₹5 and ₹10. Given a